Considering my friends all got a kick out of No Power-Ups fights with the Mavericks and Sub-Bosses of Mega Man X, I figured I'd take on the bosses of Sigma's Fortress in the same manner. A couple of things to note, however, before I get into the actual description... First off, I'll only be showing the fights unique to Sigma's area. I see no reason to show the second battles against the Mavericks when I already have the videos of me thrashing them in their respective areas. Second, yes I used the Dash Boots and Upgraded Arm Cannon in these videos. The former is because the Sigma bosses were DESIGNED with the idea of Dashing in mind...A couple are just shy of impossible without them! The latter is because it's insanely hard to get the timing down for several fights to only shoot the "yellow charge", rather than the red one. Besides, both are pretty much given to you(Zero gives you the Arm Cannon Upgrade after you defeat Vile, if you don't have it), as well as I still don't use the Armor-Up, Helmet-Up, Heart or Sub-Tanks. Enough ranting, though...Let's get on with the videos! First up is, naturally, Vile! I skipped the Carrier fight, since you have to lose at that regardless. This is the ONLY Sigma Fortress fight you can do BEFORE getting the Arm Cannon Upgrade, so I can still fight without it. But this battle was, regardless, INCREDIBLY HARD! Vile is not only quite speedy, but also can take half an unbolstered health bar in one solid punch!